What did your girlfriend mean when she said I protected you?

Your girlfriend may have said that on purpose.

In front of you, in fact, your girlfriend is the one who needs protection. I think I understand you better if he can say that, or maybe something happened to you recently, which made you lose confidence.

He said these things just to comfort you, or to warm your heart. I think your girlfriend must be a very gentle and kind person. I think a girl who can say such a thing must also need protection, but she can show that kind of strength. It shows that he is also a very sensible person.

So I think this girl must be protected. This girl still needs to make her feel warm at ordinary times. Because I think you have a problem now, it may not be like this in the future, so you will become very powerful in the future. Make yourself stronger and then you can protect your girl.

He may be joking humorously when he said this, but I think it is still very warm to hear this sentence, because few girls may say such things. And it's really distressing that a girl who feels weak suddenly becomes so powerful.

I think it is really necessary to change my present situation, make myself better and work harder, so as to be worthy of this girl's contribution.

Speaking of yourself, in fact, you can become stronger. He will always care for and support you and encourage you silently.